To ensure that data in the Oracle redo logs is not archived and overwritten before it is processed for replication, Replication Agent for Oracle requires that automatic archiving by Oracle is disabled. The Oracle archiving process is handled by the following Replication Agent log truncation processing.
Sybase Replication Agent provides features for both automatic and manual log truncation.
Replication Agent provides two options for automatic transaction log truncation:
Periodic truncation, based on a time interval you specify
Automatic truncation whenever Replication Agent receives a new LTM Locator value from the primary Replication Server
You also have the option to switch off automatic log truncation. By default, automatic log truncation is enabled and is set to truncate the log whenever Replication Agent receives a new LTM locator value from the primary Replication Server.
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